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During a House Appropriations Subcommittee on Energy and Water Development hearing March 28, the Department of Energy’s Advanced Research Projects Agency Energy Director Arun Majumdar said that the agency would emphasize projects related to transportation and stationary power systems in fiscal year 2013

The Environmental Protection Agency released its annual Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends: 1975 Through 2011 report March 8, finding that the average fuel efficiency for new cars and light duty trucks has increased while average CO2 emissions continue to decrease for the seventh consecutive year

Navistar filed a petition for review March 2 in the U.S. Court of Appeals for the District of Columbia Circuit challenging the Environmental Protection Agency’s approval of new emissions related maintenance and scheduled maintenance intervals related to selective catalytic reduction technology in vehicles

On March 12, the Department of Energy will publish a proposed rule in the Federal Register requiring federal agencies to reduce petroleum consumption in their vehicle fleets by 20 by October 2015, measured against 2005

The National Highway Traffic Safety Administration announced November 25 that it will open a formal safety defect investigation into fire risks involving General Motor Company’s Chevrolet Volt electric vehicles